2016, Part of book or chapter of book (Hondeghem, A.; Rousseaux, X.; Schoenaers, F. (ed.), Modernisation of the Criminal Justice Chain and the Judicial System. New Insights on Trust, Cooperation and Human Capital, pp. 266-275)

2004, Part of book or chapter of book (Himma, K. (ed.), Law, morality, and legal positivism : proceedings of the 21st World Congress of the International Association for Philosophy of Law and Social Philosophy (IVR), Lund, Sweden, 12-18 august 2003, pp. 139-146)